Finding the Fourth Proportional to 139,373,019.46, 209,014,772.19 and 45,978,996.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,373,019.46 : 209,014,772.19 = 45,978,996.94 : x
2. Step 2: Convert to fraction form
   139,373,019.46/209,014,772.19 = 45,978,996.94/x
3. Step 3: Cross multiply
   139,373,019.46x = 209,014,772.19 × 45,978,996.94
4. Step 4: Simplify right side
   139,373,019.46x = 9,610,289,570,243,848
5. Step 5: Solve for x
   x = 9,610,289,570,243,848/139,373,019.46
6. Step 6: Final answer
   x = 68,953,730.12